Method of closing



Dec. 8, 194-2. J v WUESTMAN 2,304,521

METHOD OF CLOSING Filed Jan. 15, 1941 INVENTOR.

' cfasgvz Meaiwazz,

BY 57 ATTORNEY.

Patented Dec. 8, 1942 UNETED STATE? FAT .bi'l @EFEICE.

1 Claim.

This invention relates to pencils, pens or like styliform devices havingincorporated therein advertising display means of the general characterdisclosed in my prior Patent No. 2,264,194; and the invention hasreference, more particularly, to an improved construction of advertisingdisplay means for incorporation in pencils, pens and like styliformdevices and to a novel method of producing the same.

Advertising display means for incorporation in pencils, pens and otherstyliform devices according to this and my prior invention disclosed inmy aforesaid copending application for letters patent comprises,generally, a transparent "chambered section having closed ends, the in-'terior of which is filled with a transparent liquid,

within which stationary and a movable advertising elements or eitheralone are submerged. The transparent liquid functions to somewhatmagnify the advertising elements, and, in the case of movable elements,controls the speed of movement thereof under gravity. In order to assureproper functioning of the liquid in these respects, it is essential thatall air within the chamber be evacuated and replaced by the liquid, tothe end that no air bubble will be formed and left within the chamberand its liquid content, with resultant interference with desiredmagnifying effect and likelihood of distortion of the visual appearanceof the advertising elements, or loss of movement control of thoseadvertising elements which are free to gravitate through the liquid.

Having these things in view, the instant invention has for an object toprovide a novel con- 'struction of means for closing the transparentchambered section of the advertising display device with air evacuatingeffect; the invention also involving a novel method of manipulating andassembling said closing means so as to attain such end.

Oher objects of this invention, not at this time more particularlyenumerated, will be understood from the following detailed descriptionof the same.

Illustrative embodiments of this invention are shown in the accompanyingdrawing, in which:

Fig. 1 is in part an elevational view and in part a longitudinalsectional view of a pencil having the improved advertising display meansembodying one form of closure means operative upon application theretoto evacuate air therefrom.

Fig. 2 is an enlarged fragmentary sectional view of the upper endportion of the transparent chambered section of the advertising displaymeans, showing one form of air evacuating closure means before assemblytherewith; Fig. 3 is a similar View showing the first step in assemblingthe air evacuating closure means; and Fig. 4 is a similar view showingthe completed assembly of the air evacuating closure means,

Similar characters of reference are employed in the above describedviews, to indicate corresponding parts.

Referring to the drawing, the advertising display means of the inventionis, by way of illustration, shown as applied to a mechanical penoil. Insaid drawing, the reference character l0 indicates the barrel of thepencil, to the upper end of which is affixed the transparent chamberedsection of advertising display means. This chambered section comprises atubular and preferably cylindrical body member H made of any suitabletransparent material, such as glass or a transparent plastic material,preferably the latter. Said body member II is .closed and sealed at itslower end by bottom plug 12, which is inserted and suitably securedtherein, preferably by ce- 'menting the same to the walls of said bodymember. The lower end of said body member II is provided with a reducedportion for insertion into the upper open end of the pencil barrel I0.Pref- -erably this reduced portion is provided with externalscrew-threads I3 to screw into said upper end of the pencil barrel it,which, in such case, is internally screwthreaded to receive the same.

Suitably arranged within the interior of the chambered section 6 I arethe advertising elements to be displayed. As shown in Fig. 1 for thepurpose of illustration, but not by way of limitation, said advertisingelements comprise, a stationary element M and a movable element I5.Illustratively, the stationary element, as shown, has the externalappearance of a tooth paste, soap or other paste tube which is suitablyaflixed against movement in desired predetermined position withthe-chambered section, as e. g. by cementing the same to the bottom ofsaid chambered section; the movable element has the appearance of pasteto be extruded from the stationary element, whereby when the pencil isinverted, said movable element, under gravity, may move outwardly of theinterior of said stationary element to give the illusion of paste inprocess of extrusion therefrom. It will be understood that theadvertising elements are subject to wide variation in form, make-up,appearance and number, and may comprise any form of relatively movableelements, or combinations of stationary and movable elements, orstationary or movable elements alone.

The interior of the chambered section II is filled with a transparentliquid [6, such, e. g., as a light transparent oil, in which liquid theadvertising elements I4 and [5 are submerged. The transparent liquid IS,in conjunction with the transparent walls of the chambered section II,not only permits the advertising elements to be observed, but also actwith magnifying effect thereupon. The liquid l6 also acts to controlgravitation of the movable advertising element in such manner as tooffer some resistance thereto, whereby the movement is so controlled asto be retarded, thereby to assure a desirable comparatively slow orgradual movement.

After the transparent liquid l6 has been introduced into the interior ofthe chambered section II, means are provided for closing and sealing theremaining or upper end of said section; said means being of novelcharacter calculated to assure complete evacuation of air from theinterior of the chambered section, and its replacement by thetransparent liquid, free from undesirable and, in fact, detrimental airbubbles.

Means for closing and sealing the open end of the liquid chargedchambered section H with air evacuating effect, as shown in Figs. 1 to 4inclusive, comprises, the provision in the wall of said chamberedsection II, adjacently below said open end thereof, of a dischargeorifice l7, preferably disposed to incline upwardly and outwardly fromthe interior of said chambered section. When the transparent liquid [6is introduced into the interior of the chambered section II, the same'is filled therein to a point above the level of the inner end of saidorifice 11 (see Fig. 2). The closure per se comprises a plug means,which, upon insertion in the open end of the chambered section, willcontact with the liquid 16 and by downward movement thereupon will forceany trapped air and the excess liquid outwardly through the orifice I1,and as it passes the latter will close the same, thus preventing thetrapping of any air within the chambered section, and consequentlyassuring complete evacuation of air and its replacement by the liquid,in such manner that the enclosed body of the latter is entirely freefrom undesirable and detrimental air bubble formation. Preferably theclosure plug means comprises a two-part structure, consisting of aprimary or inner disc or plug l8 and a secondary or outer closure plugI9 (see Fig. 2). In applying this form of closure plug means, theprimary or inner closure disc or plug [8, which is of a diameter toafford a tight sliding fit in the bore of the chambered section II, isfirst entered through the open end of the chambered section II andpushed downwardly through the bore thereof into engagement with theliquid l6, against which it is pushed, whereby trapped air and excessliquid is evacuated through the orifice I! (see Fig. 3). Downwardmovement of said primary or inner closure disc or plug [8 is continued,with continuous excess liquid discharge, until the side of the samecompletes movement across and thereupon closes or shuts off the orificeI! from communication with the interior of the chambered section II (seeposition of disc or plug l8 shown by broken lines in Fig. 3). In thismanner, the upper end of the chambered section II is closed to confinetherein a totally filling volume of liquid I6 free from air bubbleformation. After the primary or inner closure disc or plug 3 is thusmoved into operative assembled relation to and within the upper open endportion of the chambered section II, the

cavity 20 left above the assembled disc or plug 3 is thoroughly washedout with a suitable cleansing agent to free the exposed surfaces thereoffrom any traces of the oil or other liquid I 5, whereupon a suitablecement 2| is applied within the cavity, and then the secondary or outerclosure plug [9 is inserted into the latter soas to be tightly bound andsealed therein and to the primary or inner closure disc or plug [8 bythe cement 2| (see Fig. 4).

Preferably the thus closed upper end of the chambered section II isfinished by application thereto of an external finishing cap 22. To thisend said chambered section (as shown in Figs. 1 to 4 inclusive) may beprovided at its upper end with an externally screw-threaded neck 23 ofreduced diameter onto which the finishing cap, which is correspondinglyinternally screwthreaded, is screwed and secured. If desired, a safetyclip element 24 may be operatively assembled with the device, byinserting its annular base 25 over the neck 23 to seat upon the shoulder26 at the juncture of said neck with the body of said chambered section,and so as to be clamped thereto by the finishing cap 22 when the latteris screwed onto said neck 23 (see Fig. 1).

I claim:

A method of closing the open end of a transparent chambered body of thekind described which contains a transparent liquid, whereby to preventair bubble formation in said liquid content, said body having adischarge orifice spaced downwardly from the extremity of its open end,said method comprising forcing the entire body of a closure disc intothe open end of said body and against the fluid content thereof wherebyto discharge air and excess liquid through said orifice until said disccovers and closes said orifice, thereafter washing out the interior ofthe open end of said body above the thus inserted disc, then coatingsaid open end interior of the body and exposed surface of the inserteddisc with cementitious substance, and finally inserting a closure pluginto said open end interior of the body to be secured by saidcementitious substance in sealed relation to said body end and disc.

JOSEPH V. WUESTMAN.

